scholarly journals Current status of endovascular treatment for dural arteriovenous fistulae in the anterior cranial fossa: A systematic literature review

2019 ◽  
Vol 16 (2) ◽  
pp. 203-211 ◽  
Author(s):  
Kan Xu ◽  
Tiefeng Ji ◽  
Chao Li ◽  
Jinlu Yu
2020 ◽  
Vol 12 (11) ◽  
pp. 1132-1136 ◽  
Author(s):  
Benjamin Pulli ◽  
Eric S Sussman ◽  
Vera Mayercik ◽  
Gary K Steinberg ◽  
Huy M Do ◽  
...  

BackgroundPrecise delivery of liquid embolic agents (LEAs) remains a challenge in the endovascular treatment of dural arteriovenous fistulae (dAVFs) and cerebral arteriovenous malformations (cAVMs). Despite significant advances in the past decade, LEA reflux and catheter navigability remain shortcomings of current endovascular technology, particularly in small and tortuous arteries. The Scepter Mini dual-lumen balloon microcatheter aims to address these issues by decreasing the distal catheter profile (1.6 French) while allowing for a small (2.2 mm diameter) balloon at its tip.MethodsWe report our initial experience with the Scepter Mini in two patients with anterior cranial fossa dAVFs that were treated with transophthalmic artery embolization.ResultsIn both patients, the Scepter Mini catheter was able to be safely advanced into the distal ophthalmic artery close to the fistula site, and several centimeters past the origins of the central retinal and posterior ciliary arteries. A single Onyx injection without any reflux resulted in angiographic cure of the dAVF in both cases, and neither patient suffered any vision loss.ConclusionsThese initial experiences suggest that the Scepter Mini represents a significant advance in the endovascular treatment of dAVFs and cAVMs and will allow for safer and more efficacious delivery of LEAs into smaller and more distal arteries while diminishing the risk of LEA reflux.


2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Shuhei Kawabata ◽  
Hajime Nakamura ◽  
Takeo Nishida ◽  
Masatoshi Takagaki ◽  
Nobuyuki Izutsu ◽  
...  

ABSTRACT Transarterial embolization (TAE) is a useful option for anterior cranial fossa–dural arteriovenous fistula (ACF–dAVF) as endovascular devices have progressed. Liquid agents are usually injected via a microcatheter positioned just proximal to the shunt pouch beyond the ophthalmic artery; however, high blood flow from the internal maxillary artery (IMA) often impedes penetration of embolic materials into the shunt pouch. Therefore, reducing blood flow from the IMA before embolization can increase the success rate. In the present case, to reduce blood flow from branches of the IMA, we inserted surgical gauze infiltrated with xylocaine and epinephrine into bilateral nasal cavities. Using this method, we achieved curative TAE with minimal damage to the nasal mucosa. Transnasal flow reduction is an easy, effective and minimally invasive method. This method should be considered in the endovascular treatment of ACF–dAVF, especially in patients with high blood flow from theIMA.


2001 ◽  
Vol 45 (2) ◽  
pp. 211-214 ◽  
Author(s):  
Bi Devi ◽  
Di Bhat ◽  
Hv Madhusudhan ◽  
V Santhosh ◽  
Sk Shankar

2020 ◽  
Vol 35 (1) ◽  
Author(s):  
Roberta Calegari ◽  
Giovanni Ciatto ◽  
Viviana Mascardi ◽  
Andrea Omicini

Abstract Precisely when the success of artificial intelligence (AI) sub-symbolic techniques makes them be identified with the whole AI by many non-computer-scientists and non-technical media, symbolic approaches are getting more and more attention as those that could make AI amenable to human understanding. Given the recurring cycles in the AI history, we expect that a revamp of technologies often tagged as “classical AI”—in particular, logic-based ones—will take place in the next few years. On the other hand, agents and multi-agent systems (MAS) have been at the core of the design of intelligent systems since their very beginning, and their long-term connection with logic-based technologies, which characterised their early days, might open new ways to engineer explainable intelligent systems. This is why understanding the current status of logic-based technologies for MAS is nowadays of paramount importance. Accordingly, this paper aims at providing a comprehensive view of those technologies by making them the subject of a systematic literature review (SLR). The resulting technologies are discussed and evaluated from two different perspectives: the MAS and the logic-based ones.


2020 ◽  
Author(s):  
Guilherme Dabus ◽  
Peter Kan ◽  
Carlos Diaz ◽  
Boris Pabon ◽  
Juan Andres-Mejia ◽  
...  

2018 ◽  
Vol 35 (1) ◽  
pp. 34-49 ◽  
Author(s):  
Sigrid Syltevik ◽  
Stavros Karamperidis ◽  
Jiju Antony ◽  
Babak Taheri

Purpose The purpose of this paper is to present the key findings of a systematic literature review (SLR) on Lean for services and, in particular, airport services. Design/methodology/approach The authors have utilised an SLR methodology proposed by Denyer and Tranfield (2009). A total of 23 papers published in 18 scientific journals have been systematically reviewed for evaluating and establishing the current status of Lean for airport services. Findings It was observed that there are no journal publications on the use of Lean in UK airport services. Although value stream mapping has been widely accepted as a powerful Lean tool across many service organisations, its applications in airport services is in its early stages. One of the biggest challenges in the implementation of Lean for airport services is about maintaining the level of service standards. The most common barriers in the implementation of Lean for airport services may include: resistance to change, varied definitions of the term Lean for different people across the business and understanding the need for Lean in airport services as there is a misconception that Lean is confined to manufacturing. Research limitations/implications This paper seeks to contribute to and broaden the limited body of evidence of the applicability of Lean to airport services and identify areas for further research and review. Originality/value This paper makes an attempt to demonstrate the use of Lean thinking for service industries and, in particular, airport services. The authors have identified less than five papers on the use of Lean thinking in airport services and this paper sets the foundation for future research on the use of process excellence methodologies such as Lean. Moreover, the authors firmly believe that the results of this SLR can be extremely beneficial to many managers working in Airport Service contexts, irrespective of the country and culture of the organisation.


Author(s):  
Karthik Kulanthaivelu ◽  
Hima Pendharkar ◽  
Chandrajit Prasad ◽  
Arun Kumar Gupta ◽  
Arvinda Hanumanthapura Ramalingaiah ◽  
...  

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